The marginal social benefit is the:

a. benefit gained by the last user.
b. sum of the marginal benefit gained by each individual user.
c. total benefit gained by the last user.
d. sum of the benefit gained by each individual user.

Island novelties, inc., of palau makes two products—hawaiian fantasy and tahitian joy. each product's selling price, variable expense per unit and annual sales volume are as follows:

At which stage would you introduce your product to the market at large? a. development stage b. market testing stage c. commercialization stage d. ideation stage

Stock a has a beta of 1.2 and a standard deviation of 20%. stock b has a beta of 0.8 and a standard deviation of 25%. portfolio p has $200,000 consisting of $100,000 invested in stock a and $100,000 in stock b. which of the following statements is correct? (assume that the stocks are in equilibrium.) (a) stock b has a higher required rate of return than stock a. (b) portfolio p has a standard deviation of 22.5%. (c) portfolio p has a beta equal to 1.0. (d) more information is needed to determine the portfolio's beta. (e) stock a's returns are less highly correlated with the returns on most other stocks than are b's returns.